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The effects of RE on Toughness of 30CrMnSi wear-resistant cast steel

✍ Scribed by Xie Jingpei; Chen Quande; Shong Yanpei

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
548 KB
Volume
23
Category
Article
ISSN
0933-5137

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✦ Synopsis

Abstract

The effects of RE (La and Ce) on toughness of 30CrMnSi wear‐resistance cast steel have been investigated by means of analysing microstructures and mearsering the properties of the steel with and without RE. The results show that RE can refine the as‐cast microstructures, hinder or eliminate needle and network ferrite, increase the dislocation density and the quantity of dislocated martensite, and improve the shape and distribution of inclusions. Therefore the mechanical properties of the steel can be greatly enhanced, especially the toughness of the steel.

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## Abstract The microstructures, mechanical properties and corrosion resistance in molten zinc of five kinds of cast B‐bearing steels containing X wt% B ‐ 0.8 wt% Si ‐ 1.0 wt% Mn ‐ (1.0∼2.0) wt% Cr ‐ (0.3∼0.5) wt% C (X = 0.50, 1.00, 1.50, 2.00, 2.50) were studied. The effects of boron concentration